The standard applies to hot-rolled steel I-beams with parallel flanges height from 100 to 1000mm and width of the shelves from 55 to 400 mm.

STEEL CHANNEL

Steel channel is one of the types of structural shapes, which is a continuous metal profile is a U-shaped cross-section, of steel of different grades. It is used to give stiffness and stability to the structures: channels work well in bending and capable of taking some axial load, thereby increasing the strength of the structure as a whole.

Depending on the method of manufacture:

hot rolled steel channels — GOST 8240-89;

steel channels roll-formed — GOST 8278-83;

steel channels roll-formed angle — GOST 8281-80.

Depending on the kind of steel:

steel channels of ordinary quality;

channels low alloy steel channels;

carbon steel channels.

Depending on precision of rolling:

steel channels of high accuracy – A;

steel channels of high accuracy – B;

steel channels of conventional precision – V.

The requirements are high and increased accuracy meet highest quality steel channel.

Railway rails are steel beams of special sections, laid on sleepers or other supports for the formation of a two-line path that moves the rolling stock of rail transport, urban Railways, specialized staff in mines, quarries, crane equipment.

Rails for railway transportation are made of carbon steel. The most common in the CIS countries the following types of rails: R50, R65, R75.

Railway rails are divided into:

according to the types:

R50;

R65;

R65K (for external threads curves plots the path);

R75;

according to categories of quality:

V – heat-strengthened rails of the highest quality;

T1, T2 — heat-strengthened rails;

N – rails which are not heat-strengthened;

according to the presence of bolt holes:

with holes on both ends;

without holes;

according to the method of steelmaking:

M — open-hearth steel;

K — of Converter steel;

E — from electric steel;

according to referring to the source of the blanks:

from ingots;

from continuously cast billet.

PILE

Pile is metal profile, which is a chute with rounded edges of the side walls (slots) or locks. Piles can be connected in section 2 or 3 of pile. The length of the piles can reach up to 34 meters. In addition to the trough-shaped profile, there is producing the Z-shaped one and flat pile with locks.

Among all the varieties of piles should be allocated pile with Larssen locks. Its advantages include corrosion resistance, convenience and ease of installation. Pile with Larssen locks is embedded in soil piling hammers or sank using the vibratory hammer. Each subsequent pile is plunged into the ground in a special groove on the previous and expanded on the first by 180 degrees. A continuous structure forms, which can be made in the form of a ring. Inside the construction water is pumped and conducted the necessary work. After completion of the work, the pile is removed and can be reused.

SHAFT STAND

The special interchangeable profiles for mine timbering are manufactured according to GOST 18662.

Length: 9 000-12 000 mm

Limit deviations in height: +1,0/-1,5 mm.

Twisting around the longitudinal axis is not allowed.

A wide range of structural shapes is always available in the warehouses of the Company.